Perturbativity in the seesaw mechanism

We consider the Standard Model extended by right-handed neutrinos to explain massive neutrinos through the seesaw mechanism. The new fermion can be observed when it has a sufficiently small mass and large mixings to left-handed neutrinos. If such a particle is the lightest right-handed neutrino, its...

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Bibliographic Details
Main Authors: Takehiko Asaka, Takanao Tsuyuki
Format: Article
Language:English
Published: Elsevier 2016-02-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269315009582